Numerical simulation of steady blood flow through an rigid artery

Document Type : full paper

Authors

• Mohammad Nikian ¹
• Hasan Kuhgard ²

¹ Assistant Professor, Department of Mechanical Engineering, Takestan Branch, Islamic Azad University, Takestan, Iran

² MSc Student, Department of Mechanical Engineering, Takestan Branch, Islamic Azad University, Takestan, Iran

Abstract

A major cases relating to death in Iran, related to cardiovascular diseases, among which death due to obstruction of the coronary arteries that supply blood to the heart is more common. Gradual deposition cholesterol and fats the inner wall of arteries of the body, causing plaques in the artery wall, leading to tight, hardening of the vessel wall. In this study, have tried to model blood flow in the veins to be paid on the two middle layer and lateral. middle layer of non-Newtonian fluid is Micropolar and lateral layer a non-Newtonian fluid is carreau. The project analysis software FLUENT finite volume is used. The veins of the Bessel function is used to speed entry. Results at 0, 10, 20, 40 and 60% stenosis were studied. The results show that the percentage of stenosis is higher percentage increases critical state. And in 60 percent of blockage maximum amount of pressure in the vessel wall and quickly Eclipse can be seen in the region.

Keywords

• Fluid
• Taken vessels
• two-layered Blood
• Fluent software
• Bessel function

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